US Bridges

NC73 over Norfolk Southern RR

Good

Montgomery County, North Carolina · 0.2 Mi. W. Jct. NC109 · Structure no. 000000001230040

Built
1929
96 years old, rebuilt 1957
Condition
Good
inspected September 2023
Type
Tee Beam
Concrete
Length
72 ft
2 main spans
Daily traffic
3,600
2022 count
Owner
State
State Highway Agency

About this bridge

NC73 over Norfolk Southern RR is a concrete tee beam carrying NC73 over Norfolk Southern RR in Montgomery County, North Carolina. It was built in 1929 and reconstructed in 1957, so it is 96 years old, older than the North Carolina average of 38.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,600 vehicles a day, roughly 7% of them trucks, projected to reach 7,200 by 2040. The structure is 72 ft (21.9 m) long and 56 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNC73
CrossesNorfolk Southern RR
Location0.2 Mi. W. Jct. NC109
RouteState Highway 73
Coordinates35.22095, -80.00619
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating35.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length72 ft (21.9 m)
Longest span41 ft (12.4 m)
Deck width56 ft (17 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,600 (2022)
Projected traffic7,200 by 2040
Trucks7%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NC73 over Norfolk Southern RR built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1957.

What condition is NC73 over Norfolk Southern RR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does NC73 over Norfolk Southern RR carry?

About 3,600 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is NC73 over Norfolk Southern RR?

The structure is 72 ft (21.9 m) long with a longest span of 41 ft (12.4 m) and a deck 56 ft wide.

Who owns NC73 over Norfolk Southern RR?

It is owned by the State Highway Agency.